import java.util.Scanner;

public class Day_26_2_快到碗里来 {
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        while(scan.hasNext()) {
            double n = scan.nextDouble();
            double r = scan.nextDouble();
            double c = 2 * 3.14 * r;

            if(c > n) {
                System.out.println("Yes");
            }else {
                System.out.println("No");
            }
        }
    }
}
